Yep, Solano County and being treated in Sacramento County. Report says picked out be some astute clinicians, so hopefully little further spread. All it takes is one of those "superspreaders" to kick off at least a localized problem...
https://www.kcra.com/article/new-ca...ip-confirmed-in-northern-california/31123681#
You guys may be interested in this.
This is a letter to Jama by some Chinese physicians who are inferring a potential rebound carrier state following a presumptive virological "cure"as opposed to reinfection -which throws a whole new wrench in the situation. This is actually fairly scary phenomena
Letters
RESEARCH LETTER
Positive RT-PCR Test Results in Patients Recovered
From COVID-19
Previous studies on coronavirus disease 2019 (COVID-19)
mainly focused on epidemiological, clinical, and radiological
features of patients with confirmed infection.1-4 Little atten-
tion has been paid to the follow-up of recovered patients.
Methods | One hospitalized patient and 3 patients (all medical
personnel) quarantined at home with COVID-19 were treated
at Zhongnan Hospital of Wuhan University, Wuhan, China,
from January 1, 2020, to February 15, 2020, and evalu-
ated with real-time reverse transcriptase–polymerase chain
reaction (RT-PCR) tests for COVID-19 nucleic acid to deter-
mine if they could return to work. All the following criteria5
had to be met for hospital discharge or discontinuation
of quarantine: (1) normal temperature lasting longer than
3 days, (2) resolved respiratory symptoms, (3) substantially
improved acute exudative lesions on chest computed tomog-
raphy (CT) images, and (4) 2 consecutively negative RT-PCR
test results separated by at least 1 day.
The RT-PCR tests were performed on throat swabs follow-
ing a previously described method.1 The RT-PCR test kits
(BioGerm) were recommended by the Chinese Center for Dis-
ease Control and Prevention. The same technician and brand
of test kit was used for all RT-PCR testing reported; both in-
ternal controls and negative controls were routinely per-
formed with each batch of tests.
Demographic information, laboratory findings, and radio-
logical features were collected from electronic medical rec-
ords. After recovery, patients and their families were con-
tacted directly, and patients were asked to visit the hospital
to collect throat swabs for the RT-PCR tests.
This study was approved by the Zhongnan Hospital of
Wuhan University institutional review board and the need for
informed consent was waived.
Results | All 4 patients were exposed to the novel 2019
coronavirus through work as medical professionals. Two
were male and the age range was 30 to 36 years. Among 3
of the patients, fever, cough, or both occurred at onset.
One patient was initially asymptomatic and underwent
thin-section CT due to exposure to infected patients. All
patients had positive RT-PCR test results and CT imaging
showed ground-glass opacification or mixed ground-glass
opacification and consolidation. The severity of disease was
mild to moderate.
Antiviral treatment (75 mg of oseltamivir taken orally
every 12 hours) was provided for the 4 patients. For 3 of the
patients, all clinical symptoms and CT imaging abnormalities
had resolved. The CT imaging for the fourth patient showed
delicate patches of ground-glass opacity. All 4 patients had
2 consecutive negative RT-PCR test results. The time from
symptom onset to recovery ranged from 12 to 32 days.
After hospital discharge or discontinuation of quarantine,
the patients were asked to continue the quarantine protocol
at home for 5 days. The RT-PCR tests were repeated 5 to 13
days later and all were positive. All patients had 3 repeat
RT-PCR tests performed over the next 4 to 5 days and all were
positive. An additional RT-PCR test was performed using a kit
from a different manufacturer and the results were also posi-
tive for all patients. The patients continued to be asymptom-
atic by clinician examination and chest CT findings showed
no change from previous images. They did not report contact
with any person with respiratory symptoms. No family mem-
ber was infected.
Discussion | Four patients with COVID-19 who met criteria for
hospital discharge or discontinuation of quarantine in China
(absence of clinical symptoms and radiological abnormalities
and 2 negative RT-PCR test results) had positive RT-PCR test
results 5 to 13 days later. These findings suggest that at least a
proportion of recovered patients still may be virus carriers.
Although no family members were infected, all reported
patients were medical professionals and took special care
during home quarantine. Current criteria for hospital dis-
charge or discontinuation of quarantine and continued
patient management may need to be reevaluated. Although
false-negative RT-PCR test results could have occurred as
suggested by a previous study,6 2 consecutively negative
RT-PCR test results plus evidence from clinical characteris-
tics and chest CT findings suggested that the 4 patients quali-
fied for hospital discharge or discontinuation of quarantine.
The study was limited to a small number of patients with
mild or moderate infection. Further studies should follow up
patients who are not health care professionals and who have
more severe infection after hospital discharge or discontinu-
ation of quarantine. Longitudinal studies on a larger cohort
would help to understand the prognosis of the disease.
Lan Lan, MD
Dan Xu, MD
Guangming Ye, MD
Chen Xia, MS
Shaokang Wang, MS
Yirong Li, MD, PhD
Haibo Xu, MD, PhD
Author Affiliations: Department of Radiology, Zhongnan Hospital of Wuhan
University, Wuhan, China (Lan, D. Xu, H. Xu); Department of Laboratory
Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China (Ye, Li);
Beijing Infervision Technology Co Ltd, Beijing, China (Xia, Wang).
Corresponding Authors: Haibo Xu, MD, PhD, Department of Radiology
(xuhaibo1120@hotmail.com), and Yirong Li, MD, PhD, Department of
Laboratory Medicine (liyirong838@163.com), Zhongnan Hospital
of Wuhan University, Donghu Road, Wuchang District, Wuhan City 430071,
Hubei Province, China.
jama.com (Reprinted) JAMA Published online February 27, 2020 E1
